US1022766A - Type-writing machine. - Google Patents

Description

W. E. BARNARD."

TYPE WRITING MAGHINE. APPLICATION FILED JAILB, 1912.

1,022,766, I v Patented Apr. 9, 1912.

' To all whom it may concern:

UNITED STAES (PAT'NT mm WALTER E. BARNARCD, OF HARTFORD, CONNECTICUT, ASSIGNOR TO UNDERWOOED TYPE- WRITER COMPANY, OF' NEW YORK, N: Y., A CORPORATION OF DELAWARE.

TYPE-WRITING- MACHINE.

Specification of Letters Patent.

ratentean r. 9, 1912.

Application filed January 8 1912. Serial No. 669,943.

Be it known that I, WYALTER BABNARD, a citizen of the United States, residing in Hartford, in the county of Hartford andv State of Connecticut, have invented certain new and useful Improvements in 'Ty elVriting Machines, of which the following isa specification.

The object of my improvement is to provide improved means for holding an envelop-guiding arm in inoperative position.

,I provide upon the usual guide arm spring, .a clip or clips to'engage and retain the arm,

- in the manner hereinafter explained.

' In the accompanying drawings, Figure l is a perspective, showing the invention applied to the platen carriage of an Underwood typewriter. Fig. 2 shows the en i'velop-guiding arm in inoperative position.

Fig. 3 is a sectional view, with the guide arm in the operative position. Fig. 4C is a perspective of the guide arm tension spring. Fig. 5 is a cross section of the guide arm held under a clip or keeper.

Fastened to the carriage frame 1 by screw 2, is a bracket 3, in which is set a screw 4, which serves as a pivot or axis upon which an envelop-guiding arm- 5 swings. Said arm 5 has at its outer end ears 6, 7, and a roll 8 on axle 9, to run on the platen 9 In order to afford some up and down play to the envelop-guide arm 5, the holes or bearings 10 therein, which engage the screw or pivot- 4, are enlarged, as shown in Fig. 2. To keep this guide in contact with the envelops, which have va rying thicknesses, a leaf sprin' 11 is employed. This spring {11 is means of a screw 12 to the carriage frame 1, and its free end controls said envelopguiding arm 5. v I

-In the operative'position of the arm 5, the spring 11 bears against a plate or shoulder 13 forming the backbr base ofsaid arm. When the roll 8 passes over a thick part or section of an envelop, the arm 5 will be raised, and upon coming to a thin portion,

astened by sidewise into the it there. "While held by this means alone, a slight touch on the arm, 'or even the contact of the operators sleeve therewith, wouldbe liable to throw the arm 5 out of its inop 55.

erative position, and sometimes even to the operative position.- Moreover, while in the inoperative position, said arm5 might some. times be raised by spring 11 into the line of, vision of the f operator, and thus obstruct 50 the view of parts of the writing line :Fo'; retain arm 5 positively in the inoperativeposition, and to protect it from so tact with the operators sleeve, the spring l'is prpvided with clips, keepers or guards 14, 15, which have inclineson their under surface from A to B, and declines from Bto C. The first incline AB guides the envelope" guide arm 5 down beneath the clipsor keeper, while the decline BC has a tend ency to thrust or cam said arm 5 toward the carriage frame 1, and to hold it there, acting thereon as a latch to prevent the said arm 5 from being accidentally dislod ed.

Having thus described my invention, I

claim: p

-1. The combination with a platen and a platen-supporting frame, of an envelopguiding arm loosely hinged upon the platen frame to swing sidewise in either direction from a position in contact with the laten to a position alongside of the platen rame, a double-acting spring .secured upon the platen frame and engaging said guide near I 7 its hinge'to hold it against the platen or the 85.

platen frame, and a clip upon said spring to engage said guide when it is out of use, and hold it against accidental displacement.

2. .In a front-strike t pewriter, the comb nation with -a shiftabl e envelop guide, of a spring having clips orkeepers, each rovided with a decline or cam portion, to old' said guide arm below the linebf vision. I

3. The combination of a shiftable envelop-guide having enlarged hearings, to, allow slight raising or lowering, and a spring having clips or keepers havingcam, portions to depress said guide arm.

WALTER E. BARNARD. Witnesses LORENZ L. PRITZL,

WM. H. GREY.

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